Activated carbon with a metal based component

摘要

The invention relates to an activated carbon, in particular an activated carbon with reactive and/or catalytic activity, said activated carbon being in the form of discrete activated carbon particles, preferably in a spherical and/or grain form. The activated carbon is provided with and/or comprises at least one metal component which has at least one metal-containing ionic liquid (IL) containing, in particular metal ions, preferably based on a metal compound. The invention also related to methods for producing said activated carbon, to the uses thereof and to materials provided herewith.

主权项

1. Activated carbon particles comprising an activated carbon provided with catalytic or reactive constituents,
wherein the activated carbon is in the form of discrete activated carbon particles having a spherical or grain shape, where the activated carbon has particle sizes in the range from 0.01 to 2 mm, as determined according to the method of ASTM D2862-97/04; wherein the activated carbon has a total pore volume in the range from 0.7 to 2.5 cm3/g, wherein from 30% to 85% of the total pore volume of the activated carbon is formed by pores having pore diameters in the range from 2 nm to 50 nm; wherein the activated carbon has a specific BET surface area in the range from 500 m2/g to 3,500 m2/g; wherein the activated carbon is provided with at least one metal component, wherein the metal component comprises at least one metal-containing ionic liquid (IL) comprising at least one metal compound dissolved or dissociated in the ionic liquid (IL), wherein the metal compound comprises at least one metal selected from the group consisting of Cu, Ag, Au, Zn, Hg, Sn, Ce, Ti, Zr, V, Nb, Cr, Mo, W, Mn, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd and Pt; wherein the ionic liquid (IL) is selected from the group consisting of:
(i) compounds of the general formula [Cat]n+[An]n−where “Cat” is a cation and “An” is an anion and “n” is an integer equal to 1 or 2; and(ii) compounds of the general formula [Cat1]xy+[An1]yx− where “Cat1” is a cation and “An1” is an anion and “x” and “y” are each, independently of one another, an integer in the range from 1 to 4, where the cation of the ionic liquid (IL) is selected among nitrogen-containing cations selected from the group consisting of quaternary ammonium cations, imidazolium cations, pyridinium cations, pyrazolium cations and triazinium cations and phosphorus-containing cation in the form of a phosphonium cation and where the anion of the ionic liquid (IL) is an organic or inorganic anion; and wherein the activated carbon comprises the metal-containing ionic liquid (IL) in amounts of from 1% by volume to 70% by volume, based on the volume of the activated carbon; or wherein the amount of metal-containing ionic liquid (IL), determined as the pore-filling degree α, is such that 20% to 95% of the pore volume of the activated carbon is not filled with the metal-containing ionic liquid (IL), wherein the pore-filling degree α is determined according to the formula [α=VIL/(Vpore · msupport)], wherein “VIL” designates the volume of the ionic liquid to be used, “msupport” designates the mass of the activated carbon to be used and “Vpore” designates the specific pore volume of the activated carbon.